package Integer
import NoWurst

public function int.abs() returns int
	if this >= 0
		return this
	else
		return -this

public function int.squared() returns int
	return this*this

public function int.sign() returns int
	if this > 0
		return 1
	else if this < 0
		return -1
	else
		return 0

public function int.toReal() returns real
	return this * 1.

public function int.toString() returns string
	return I2S(this)

public function int.pow(int x) returns int
	int result = 1
	for int i=1 to x
		result *= this
	return result